Download Power Steering Warning Message Displayed in DIC, IPC/Radio Displays Erratic, DTC C0900, B1325 Set (Replace Ignition Coil/Module Assembly and Add Ground Strap) Models: 2004-2006 Chevrolet Malibu, Malibu Maxx with 3.5L Engine (VINs 8, N — RPOs LX9, LZ4) Condition Some customers may comment on a loss of power steering assist at high RPM (above 3500 RPM) and a power steering warning message displayed in the DIC. They may also comment some instrument/radio displays are erratic. Upon investigation, the technician may find DTC C0900 set. If the displays were erratic, then DTC B1325 will also be set. Cause This condition may occur when the system voltage exceeds 16 volts for one second for code C0900 and the system shuts down to protect it from over-voltage operation. If the voltage exceeds 18 volts for five seconds for code B1325, then other electronic systems protect themselves and shut down. It has been found that this voltage increase is caused by an interaction between the alternator and the ignition coil/module assembly.… Read More

Download Malfunction Indicator Lamp (MIL) On, Transmission Stuck in Second or Third Gear, Instrument Cluster Inoperative (Verify and Repair Source of Voltage Loss In Transmission Solenoid Power Supply Circuit ) Models: 2006 and Prior GM Passenger Cars and Light Duty Trucks 2005-2006 HUMMER H2 2006 HUMMER H3 2005-2006 Saab 9-7X with 4L60-E, 4L65-E, 4L80-E or 4L85-E Automatic Transmission (RPOs M30, M32, M33, MT1, MN8) Condition Some customers may comment on one or more of the following conditions: Upon investigation, one or all of the diagnostic trouble codes (DTCs) P0740, P0753, P0758, P0785, P0787, P0973, P0976, P1860, P2761, P2764 and P2769 may be set depending on the vehicle. Cause The most likely cause of this condition may be a loss of voltage to the transmission solenoid power supply circuit. This condition may also be the result of an incorrect installation of an aftermarket electronic device such as a remote starter or alarm system.… Read More

Download CAUTION: MAKE SURE THE IGNITION SWITCH IS OFF!! The wire from the ignition switch to the ignition coil primary terminal is NOT fused in many applications. If this wire is allowed to touch vehicle or engine ground, with the ignition switch on, it can cause a direct short on the battery possibly causing permanent damage to the vehicle wiring and a fire. Cypress Engineering assumes no liability for damage caused from this occurrence or due to any faults in the existing vehicle wiring. 5. Remove the ignition switch wire from the ignition coil primary positive (+) terminal. Make sure this wire does not come into contact with vehicle or engine ground. 6. Remove the ignition coil and mounting strap from the fan housing and set them aside. 7. Remove the stock distributor and set it aside. 8. Install the Compu-Tronix DIS4-2.3 L Ford Electronic Distributor. Tighten the clamp just enough so that the distributor can still be turned by hand.… Read More

Download . Circuit Description The torque converter clutch (TCC) brake switch is used to indicate the status of the brake pedal (applied or released). If the PCM detects an open TCC brake switch (stuck ON) during accelerations, then DTC P0719 sets. DTC P0719 is a type C DTC. Conditions for Running the DTC * No VSS DTCs P0502 or P0503. * DTC P0719 has not passed this ignition cycle. Conditions for Setting the DTC The TCC brake switch input is at 0 volts for 15 minutes and the following conditions occur 8 times without a status change on the TCC brake input: * The vehicle speed is less than 8 km/h (5 mph). * The vehicle accelerates to 32 km/h (20 mph) within 2-6 seconds. * Then the vehicle speed remains above 32 km/h (20 mph) for 6 seconds. Action Taken When the DTC Sets * The PCM does not illuminate the malfunction indicator lamp (MIL).… Read More